Texas Instruments PLUS TI-89 - Manual (Page 37)

20 Chapter 2: Operating the Calculator
02OPER.DOC TI-89/TI-92 Plus: Operating the TI-89/TI-92 Plus (English) Susan Gullord Revised: 02/23/01 1:06 PM Printed: 02/23/01 2:11 PM Page 20 of 44
Key Description
TI . 89:
Í
TI . 92 Plus:
2 Í
Enters the “with” operator, which is used in symbolic
calculations (Chapter 3).
2 <,
2 = Performs integrations and derivatives (Chapter 3).
2 ’ Designates an angle in polar, cylindrical, and spherical
coordinates.
2 I Displays the MATH menu.
2 ¯ Displays the MEMORY screen (Chapter 21).
2
° Displays the VAR-LINK screen for managing variables
and Flash applications (Chapter 21).
2 £ Recalls the contents of a variable (page 48).
TI . 89:
2 9
TI . 92 Plus:
¥ À
Displays the UNITS dialog box (Chapter 4).
2 ¿ Displays the CHAR menu, which lets you select Greek
letters, international accented characters, etc.
(Chapter 18).
2 ±,
2 ² Recalls the previous entry and the last answer,
respectively (page 49).
Important Keys
(continued)